No, it's not working, give me an error message like i cannot insert this codec video in .mkv.Ofcourse i changed only format setting, video and audio settings are "copy" mode.

I cannot give a sample, because these file go from 300 MB to 2 Giga, but my objective is to cut less usefull part to get a small size and playtime.Until now i've converted the .wmv file to .avi using Format Factory and then edited the .avi, but is a time consuming process. Also size is not reduced much, because reencoded .avi take a large ammount of space (40% more than .wmv).

Use MediaInfo <- click and post the info of the kind of wmv you use. Perhaps it is possible to find similar videoclip in smaller size (20 MB). Without a sample wmv there is nothing much the developers can do to fix this.

The base version work whithout problem, but if i cut some part and then save as .avi the video result in fast play time and no audio.Video and audio set to "copy".Other setting get an error message, or the file will increase in size, mean is useless because i want to reduce it by cutting some part.

The codecs WMV3 (video) and WMA (both by microsoft) don't work well in avi, as you already found out.So you need to re-encode the edited video, try these settings in avidemux 2.6 and see if that works for you. Video Output: Mpeg4 ASP (xvid4) Audio Output: MP3 (lame) Output format: aviDo your editing and save the video. Result: cut to 24 seconds: test.avi 12 MB download

EDIT:sorry found out, is a setting. It's already on 4 on a scale from 1 to 32 (best-worse)

EDIT 2:using 1 for quality will get a rough 55 Mb per minute, so is not good.using 2 for quality 16 Mb / minute. Original video is 15,9 Mb / minute, so is the right setting.using 3 for quality: 9,8 Mb / minute. Too video loss.

Setting Audio and Video to copy and format to .aviResult are all the same: the video on mediaplayer classic is too fast, audio also play too fast.VLC give me no problem on video speed, but the audio is always missing.

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I can say the problem is solved.

Is it? Actually converting is just a workaround. But okay, if you're happy...

There are software that edit and save .wmv files, but Avidemux is not one of them, i already know this.All i need is to use one software for all my vids, the output format chosen is merely a standar that let me regain space after the video cut, i don't really care if is .avi, .mkv, .wmv or other as long as mediaplayer classic and CCCP can play them